1) If you don't see that film, you'll be sorry.
=> Unless you see that film, you'll be sorry.
2) If you don't take morning exercise, you will be weak.
=> Unless you take morning exercise, you will be weak.
3) You will get lost if you don't take a map with you.
=> You will get lost unless you take a map with you.
4) They will kill him if he doesn't tell them the truth.
=> They will kill him unless he tell them the truth.
5) If we don't protect the forests, the environment will bee...
=> Unless we protect the forests, the environment will bee...
